/* Aviso Architektur — gemeinsame Basis für alle Prototypen
   Farben/Schriften exakt nach branding/aviso/brand-tokens.json */
@font-face{font-family:"DM Sans";src:url("fonts/dmsans.woff2") format("woff2");font-weight:100 1000;font-display:swap}
@font-face{font-family:"Inter";src:url("fonts/inter.woff2") format("woff2");font-weight:100 900;font-display:swap}

:root{
  --kalkweiss:#F2EFE8; --sandstein:#D6CDBC; --basalt:#2A2723; --graubraun:#6E675D; --terrakotta:#A6522F;
  --font-head:"DM Sans",system-ui,sans-serif; --font-body:"Inter",system-ui,sans-serif;
  --dauer-kurz:240ms; --dauer-mittel:600ms; --dauer-lang:1000ms;
  --ease-standard:cubic-bezier(0.22,1,0.36,1); --ease-vorhang:cubic-bezier(0.76,0,0.24,1);
  --rand:5vw; --max:1440px;
  --t-display:clamp(3.5rem,1.6rem + 6.2vw,7.5rem);
  --t-h1:clamp(2.75rem,1.4rem + 4.3vw,5rem);
  --t-h2:clamp(2rem,1.1rem + 2.9vw,3.5rem);
  --t-h3:clamp(1.375rem,1.2rem + .6vw,1.75rem);
  --t-body:clamp(1.0625rem,1rem + .2vw,1.1875rem);
  --t-label:.8125rem; --t-meta:.875rem;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{margin:0;background:var(--kalkweiss);color:var(--basalt);font-family:var(--font-body);font-size:var(--t-body);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,video,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:500;margin:0;letter-spacing:-.015em}
p{margin:0}
::selection{background:var(--terrakotta);color:var(--kalkweiss)}
:focus-visible{outline:2px solid var(--terrakotta);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.label{font-family:var(--font-body);font-weight:600;font-size:var(--t-label);letter-spacing:.06em;text-transform:uppercase;line-height:1.2}
.meta{font-size:var(--t-meta);line-height:1.4;color:var(--graubraun)}
.akzent{color:var(--terrakotta)}
.wrap{width:100%;max-width:calc(var(--max) + 2*var(--rand));margin:0 auto;padding:0 var(--rand)}

/* Button: eckig, Pfeil gleitet */
.btn{display:inline-flex;align-items:center;gap:.9em;padding:1.05em 1.5em;font-family:var(--font-body);font-weight:600;font-size:.9375rem;letter-spacing:.01em;text-decoration:none;border-radius:0;transition:background var(--dauer-kurz) var(--ease-standard),color var(--dauer-kurz) var(--ease-standard)}
.btn .pfeil{display:inline-block;transition:transform var(--dauer-kurz) var(--ease-standard)}
.btn:hover .pfeil{transform:translateX(5px)}
.btn--terra{background:var(--terrakotta);color:var(--kalkweiss)}
.btn--terra:hover{background:#8f4527}
.btn--basalt{background:var(--basalt);color:var(--kalkweiss)}
.btn--basalt:hover{background:#3a3631}
.btn--line{border:1px solid currentColor;padding:calc(1.05em - 1px) calc(1.5em - 1px)}

/* KI-Kennzeichnung am Medium */
.ki{position:absolute;right:.75rem;bottom:.75rem;z-index:3;font-size:.6875rem;line-height:1.3;letter-spacing:.02em;padding:.35em .6em;background:rgba(42,39,35,.62);color:var(--kalkweiss);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);max-width:calc(100% - 1.5rem)}

/* ---------- Intro ---------- */
.intro{position:fixed;inset:0;z-index:90;pointer-events:none}
.intro__half{position:absolute;top:0;bottom:0;width:50.5%;background:var(--kalkweiss);pointer-events:auto}
.intro__half--l{left:0}.intro__half--r{right:0}
.intro__mark{position:fixed;left:50%;top:50%;width:min(30vw,190px);height:min(30vw,190px);transform:translate(-50%,-50%);transform-origin:0 0;z-index:92;overflow:visible}
.intro__skip{position:fixed;right:var(--rand);bottom:2rem;z-index:93;pointer-events:auto;color:var(--graubraun);font-size:var(--t-meta);border-bottom:1px solid var(--sandstein);padding-bottom:2px}
.intro__skip:hover{color:var(--basalt)}
.intro.is-done{display:none}
html.no-intro .intro{display:none}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background var(--dauer-mittel) var(--ease-standard),border-color var(--dauer-mittel) var(--ease-standard),color var(--dauer-mittel) var(--ease-standard);border-bottom:1px solid transparent}
.header__in{display:flex;align-items:center;justify-content:space-between;height:84px}
.brand{position:relative;display:block;height:44px;width:calc(44px*405/124)}
.brand img{position:absolute;inset:0;height:100%;width:100%;transition:opacity var(--dauer-mittel) var(--ease-standard)}
.brand .logo-neg{opacity:0}
.header.on-dark .brand .logo-neg{opacity:1}.header.on-dark .brand .logo-pos{opacity:0}
.header.on-dark{color:var(--kalkweiss)}
.header.is-solid{background:rgba(242,239,232,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom-color:var(--sandstein);color:var(--basalt)}
.header.is-solid .brand .logo-neg{opacity:0}.header.is-solid .brand .logo-pos{opacity:1}
.header__nav{display:flex;align-items:center;gap:2.25rem}
.header__links{display:flex;gap:2rem;list-style:none;margin:0;padding:0}
.header__links a{text-decoration:none;position:relative}
.header__links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;background:var(--terrakotta);transform:scaleX(0);transform-origin:left;transition:transform var(--dauer-kurz) var(--ease-standard)}
.header__links a:hover::after{transform:scaleX(1)}
.menu-btn{display:inline-flex;align-items:center;gap:.75rem}
.menu-btn__lines{width:26px;height:10px;position:relative}
.menu-btn__lines::before,.menu-btn__lines::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform var(--dauer-kurz) var(--ease-standard)}
.menu-btn__lines::before{top:0}.menu-btn__lines::after{bottom:0}
.intro-pending .header .brand:not(.is-landed) img{opacity:0!important}
@media (max-width:900px){.header__links{display:none}.brand{height:36px;width:calc(36px*405/124)}.header__in{height:70px}}

/* ---------- Overlay-Menü ---------- */
.menu{position:fixed;inset:0;z-index:80;background:var(--basalt);color:var(--kalkweiss);display:grid;grid-template-columns:1fr 1fr;visibility:hidden;clip-path:inset(0 0 100% 0);transition:clip-path var(--dauer-lang) var(--ease-vorhang),visibility 0s linear var(--dauer-lang)}
.menu.is-open{visibility:visible;clip-path:inset(0 0 0 0);transition:clip-path var(--dauer-lang) var(--ease-vorhang),visibility 0s}
.menu__top{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;height:84px;padding:0 var(--rand)}
.menu__top img{height:44px;width:auto}
.menu__close{display:inline-flex;gap:.75rem;align-items:center}
.menu__list{list-style:none;margin:0;padding:0 var(--rand);align-self:center;counter-reset:m}
.menu__list li{counter-increment:m;border-top:1px solid rgba(214,205,188,.18)}
.menu__list li:last-child{border-bottom:1px solid rgba(214,205,188,.18)}
.menu__list a{display:flex;align-items:baseline;gap:1.5rem;padding:.35em 0;font-family:var(--font-head);font-weight:500;font-size:clamp(2.5rem,1.5rem + 3.4vw,4.75rem);line-height:1.05;letter-spacing:-.02em;text-decoration:none;transition:color var(--dauer-kurz) var(--ease-standard),padding var(--dauer-kurz) var(--ease-standard)}
.menu__list a::before{content:"0" counter(m);font-family:var(--font-body);font-size:var(--t-label);font-weight:600;letter-spacing:.06em;color:var(--sandstein);min-width:2.2em}
.menu__list a:hover,.menu__list a:focus-visible{color:var(--terrakotta);padding-left:.4em}
.menu__media{position:relative;margin:112px var(--rand) 48px 0;overflow:hidden}
.menu__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.03);transition:opacity var(--dauer-mittel) var(--ease-standard),transform var(--dauer-lang) var(--ease-standard)}
.menu__media img.is-on{opacity:1;transform:scale(1)}
.menu__foot{position:absolute;left:var(--rand);bottom:2rem;color:var(--sandstein)}
@media (max-width:900px){.menu{grid-template-columns:1fr}.menu__media{display:none}.menu__top{height:70px}.menu__top img{height:36px}}

/* ---------- Grundriss (Stufe 1) ---------- */
.plan-svg{width:100%;height:100%}
.plan-svg .w{fill:none;stroke:var(--basalt);stroke-width:2}
.plan-svg .t{fill:none;stroke:var(--basalt);stroke-width:1.1}
.plan-svg .d{fill:none;stroke:var(--graubraun);stroke-width:1;stroke-dasharray:10 8}
.plan-svg .m{fill:none;stroke:var(--graubraun);stroke-width:1}
.plan-svg .a{fill:none;stroke:var(--terrakotta);stroke-width:1.4}
.plan-svg text{font-family:var(--font-body);font-size:17px;fill:var(--graubraun);letter-spacing:.04em}
.plan-svg .cut{fill:var(--kalkweiss)}

/* Prototyp-Hinweis */
.proto-note{position:fixed;left:50%;top:0;transform:translateX(-50%);z-index:70;white-space:nowrap;font-size:.6875rem;letter-spacing:.04em;padding:.4em .7em;background:var(--basalt);color:var(--sandstein);opacity:.9}
.proto-note b{color:var(--kalkweiss);font-weight:600}

/* Reveal */
[data-reveal]{opacity:0;transform:translateY(24px)}
html.no-js [data-reveal],html.rm [data-reveal]{opacity:1;transform:none}
.word{display:inline-block;white-space:pre}

/* Video-Pause (WCAG 2.2.2) */
.vid-toggle{display:inline-flex;align-items:center;gap:.55rem;font-size:var(--t-meta);opacity:.85}
.vid-toggle:hover{opacity:1}
.vid-toggle__icon{width:10px;height:12px;position:relative}
.vid-toggle__icon::before,.vid-toggle__icon::after{content:"";position:absolute;top:0;bottom:0;width:3px;background:currentColor}
.vid-toggle__icon::before{left:0}.vid-toggle__icon::after{right:0}
.vid-toggle[aria-pressed="true"] .vid-toggle__icon::before{width:0;height:0;background:none;border-left:10px solid currentColor;border-top:6px solid transparent;border-bottom:6px solid transparent}
.vid-toggle[aria-pressed="true"] .vid-toggle__icon::after{display:none}

/* Seitenübergang */
.pt{position:fixed;inset:0;z-index:95;pointer-events:none;background:var(--kalkweiss);transform:translateY(100%)}
.pt::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--terrakotta);transform:scaleX(0);transform-origin:left}

@media (prefers-reduced-motion:reduce){*{transition-duration:.01ms!important;animation-duration:.01ms!important}}
.intro-pending .header{z-index:91}
.intro-pending .header .header__nav{opacity:0}
.header .header__nav{transition:opacity var(--dauer-mittel) var(--ease-standard)}